• Country
• Great Britain (UK)

• Manufacturer / Brand
• Roberts Radio Co.Ltd., East Molesey, Surrey, UK

• Year
• 1979–1982

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 90041

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Transistors
• 11

• Semiconductors
• BF194 BF195 BF195 BF195 BC148 BF194 BC148 BC158 BC158 BC338 BC328 AA119 AA119 AA119

• Main principle
• Superheterodyne (common); ZF/IF 470 / 10700 kHz; 3 AF stage(s)

• Wave bands
• Broadcast, Long Wave and FM or UHF.

• Power type and voltage
• Dry Batteries / 9 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 8.5 cm = 3.3 inch

• Power out
• 0.45 W (undistorted)

• Material
• Leather / canvas / plastic - over other material

• from Radiomuseum.org
• Model: RT22 - Roberts Radio Co.Ltd., East

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 245 x 106 x 75 mm / 9.6 x 4.2 x 3 inch

• Notes

• Im Schaltbild ist irrtümlicherweise R47 als Lautstärkeregler angegeben. Als Lautstärkeregler dient aber R33.

  Bei den Halbleitern sind jene des FM-Tuners nicht enthalten. Dieser ist eine "sealed unit" und auch nicht abgleichbar.

  The list of semiconductors excludes those in the sealed Roberts RR1412/4 FM module.

• Net weight (2.2 lb = 1 kg)
• 1.5 kg / 3 lb 4.9 oz (3.304 lb)

• Mentioned in
• - - Manufacturers Literature (Trader Service Sheet 3357/ 1979)

• Literature/Schematics (1)
• Trader Service Sheet (suppl. of Wireless & El. Trader, etc.) (3357 21.3.1979)

• Author
• Model page created by Howard Craven. See "Data change" for further contributors.

• Other Models

• Here you find 100 models, 96 with images and 44 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Roberts Radio Co.Ltd., East Molesey, Surrey, UK